:root { --primary: #006
6ff; --dark: #1a1a1a; --light: #f8f9fa; --gray
: #666; --accent: #00c6ff; }
        * { margin: 0; padding
: 0; box-sizing: border-box; }
        body { font-family: 'PingFang SC',
 'Microsoft YaHei', sans-serif; color: var(--dark); line-height: 1.6;
 background-color: #ffffff; }
        .container { max-width: 1200px;
 margin: 0 auto; padding: 0 20px; }
        header { background: #fff; padding: 1
5px 0; border-bottom: 1px solid #eee; position: sticky; top: 0
; z-index: 1000; }
        .nav-inner { display: flex; align
-items: center; justify-content: space-between; }
        .nav-links { display: flex; gap: 
0; list-style: none; }
        .nav-links a { padding: 0 15px; color: var
(--dark); text-decoration: none; font-weight: 500; font-size: 1
4px; }
        .hero { padding: 80px 0; text-align: center; background
: linear-gradient(135deg, #f0f7ff 0%, #fff 10
0%); }
        .hero h1 { font-size: 3rem; margin-bottom: 20px; color
: var(--dark); }
        .btn { display: inline-block; padding: 12px 30px;
 background: var(--primary); color: #fff; border-radius: 6px; text-decoration: none; transition: 
0.3s; }
        .btn:hover { background: #0052cc; }
        section { padding:
 60px 0; }
        h2 { text-align: center; margin-bottom: 40px; font
-size: 2rem; }
        .grid { display: grid; grid-template-columns: repeat(auto-fit
, minmax(280px, 1fr)); gap: 30px; }
        .card { padding
: 30px; border: 1px solid #eee; border-radius: 12px; transition:
 0.3s; background: #fff; }
        .card:hover { transform: translateY(-5px); box-
shadow: 0 10px 20px rgba(0,0,0,0.05); }
        .
faq-item { margin-bottom: 15px; border-bottom: 1px solid #eee; padding
-bottom: 15px; cursor: pointer; }
        footer { background: var(--dark); color
: #fff; padding: 40px 0; text-align: center; }
        .footer
-links a { color: #ccc; margin: 0 10px; text-decoration: none; }